diff --git a/.changeset/rich-forks-mix.md b/.changeset/rich-forks-mix.md
new file mode 100644
index 00000000..9a63f4c7
--- /dev/null
+++ b/.changeset/rich-forks-mix.md
@@ -0,0 +1,5 @@
+---
+"fast-check": patch
+---
+
+🐛 Bad d.ts import in BuildInversedRelationsMapping
diff --git a/packages/fast-check/src/arbitrary/_internals/helpers/BuildInversedRelationsMapping.ts b/packages/fast-check/src/arbitrary/_internals/helpers/BuildInversedRelationsMapping.ts
index 8cc06a4d..f2d9606e 100644
--- a/packages/fast-check/src/arbitrary/_internals/helpers/BuildInversedRelationsMapping.ts
+++ b/packages/fast-check/src/arbitrary/_internals/helpers/BuildInversedRelationsMapping.ts
@@ -1,4 +1,4 @@
-import type { EntityRelations, Relationship } from '../interfaces/EntityGraphTypes';
+import type { EntityRelations, Relationship } from '../interfaces/EntityGraphTypes.js';
 import {
   Error as SError,
   String as SString,